Oracle Database Express Edition (XE)

Hi!

I changed my database name on my oracle xe database, running on Ubuntu Linux, from XE to MUDB using 'nid'.

It works and the 'select name from v$database' shows me the database name 'MUDB'.

But I have some Problems:

I change in my initXE.ora the db name to 'MUDB' and changed the name of this initialization file to initMUDB.ora

When I want to startup the database in SQLPlus as 'sys / as sysdba' SQLPlus asks me for 'initXE.ora'

The second problem:

If I connect me directly on the server via sqlplus with 'connect sys/password as sysdba' it works.

If I connect me directly on the server via sqlplus with 'connect sys/password@MUDB as sysdba' it shows me the following error:

ORA-01031 insufficient privileges

I changed my listener.ora and tnsnames.ora in the following way:

# listener.ora Network Configuration File:

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /usr/lib/oracle/xe/app/oracle/product/10.2.0/server)
(PROGRAM = extproc)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(ADDRESS = (PROTOCOL = TCP)(HOST = mac-ubuntu)(PORT = 1521))
)
)

DEFAULT_SERVICE_LISTENER = (MUDB)



# tnsnames.ora Network Configuration File:

MUDB =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = mac-ubuntu)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = MUDB)
)
)

EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)



Where could be my error?

Thanks for any help!

Gerhard